Weather stripping



F. D. ZIMMERM'AN WEATHER STRIPPING Jan, 28, 1930.

2 Sheets-Sheet l 7 Filed June 20, 1928 Fr'edj Z/Mmerman Jafi. 28, 1930. ZlMMERMAN I 1,745,237

WEATHER STRIPPING Fil ed June 20, 1928 2 Sheets-Sheet 2 Patented Jan. 28, 1930 UNITED STATES.

FRED D. ZIMMERMAN, OF MOUNT CLARE, NEBRASKA WEATHER STRIPIING Application filed June 20,

This invention relates to improvements in weather strips, and has for an object the provision of a strip which will provide an effective weatherproof joint between a window sash and frame, the construction being such that the strip may be easily applied, and when in position, will automatically adjust itself to take up wear.

Another object of the invention is the provision of a weather strip providing a yieldable frictional engagement between the sash and frame which will be sufficient to hold the sash in position without the use of balance Weights or analogous devices, means being provided for manually adjusting the frictional engagement, to adapt the invention to sashes of difierent sizes and weights. 7

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claim.

In the drawings Figure 1 is an elevation of a window with parts of the frame and sash shown in section to more clearly illustrate the invention.

Figure 2 is an enlarged fragmentary elevation partly in section showing a portion of a window sash with the invention applied.

Figures 3 and 4 are sectional views taken respectively on the lines 33 and 44 of Figure 2.

Referring to the drawings in detail wherein like characters of reference denote corresponding parts, the reference character 10 indicates a window frame within which is mounted for sliding movement a sash 11. The frame and sash may be of the ordinary or any preferred construction and the invention may be applied to either the upper or lower sash or both.

In carrying out the invention, the sash is lon itudinally grooved along its side edges as sliown at 12 and along its top and bottom edges as shown at 13 so as to accommodate the weather strip.

The strip which occupies the groove or grooves 12 comprises a channel member 14 which forms the base of the strip and a rub- 1328. Serial No. 286,879.

her or other compressible strip 15 whose inner edge is seated and preferably clamped between the walls of the channel member 14. Secured to the channel member 14 are spaced sleeves 16 which extend into sockets 17 provided in the sash. Any suitable means may be provided for attaching the sleeves to the channel member 14, the means shown consisting of a short screw 18.

Extending from the inner end of the socket- 17 is an opening 19 and slidable through this opening is a screw 20 whose head is positioned within a recess or socket 21 at the outer end of the opening 19. The screw 20 has an adjustable threaded engagement with one end of the sleeve 16 as shown at 22 and is surrounded by a spring 23. This spring bears against the inner end of the socket 17 and against the adjacent end of the sleeve 16 and acts to yieldingly force this sleeve outward so as to cause the compressible strip 15 to frictionally engage the window frame.

By reference to Figure 5 of the drawings it will be seen that the spring 23 acts to force the strip 15 outward, the tension of the spring being sufficient to provide suflicient frictional contact between the strip 15 and the window frame to hold the sash in position without the use of counterbalance weights. Frictional engagement between the strip 15 and the frame may be controlled by adjusting the screw 20 so as to limit outward movement of the strip 15.

The weather strip is designed to be duplicated upon opposite sides of the sash and if' desired, the strips upon one or both sides of the sash may be adjustable.

It is preferred to employ compressible strips 24 in the upper and lower grooves 13 and these strips may be held in place by means of fastening devices 25.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to make such changes as properly 9 fall within the scope of the appended claim. Having described the invention what is claimed is:

In combination with a window frame, a sash mounted for sliding movement therein,

a weather strip carried by and extending along the edge of the sash for frictional engagement with the frame, said stri comprismg an elongated channel-shape member adapted to be received within a groove provided in the sash, a compressible strip carried by the channel-shaped member and extending beyond the edge of the sash for contact with the frame, spaced sleeves extending from the channel-shaped member into the sash, springs bearing upon the sleeves to force the strips outward, and means engaged with the sleeves to adjust the sleeves axially and regulate the tension of the springs.

In testimony whereof I afiix in Si nature.

FRED D. ZIMMR AN. 

